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Side by Side Diff: mojo/public/cpp/application/application_connection.h

Issue 380413003: Mojo: Use InterfaceFactory<Interface> for service registration (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: fix network_service_loader Created 6 years, 5 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef MOJO_PUBLIC_APPLICATION_APPLICATION_CONNECTION_H_ 5 #ifndef MOJO_PUBLIC_APPLICATION_APPLICATION_CONNECTION_H_
6 #define MOJO_PUBLIC_APPLICATION_APPLICATION_CONNECTION_H_ 6 #define MOJO_PUBLIC_APPLICATION_APPLICATION_CONNECTION_H_
7 7
8 #include <string> 8 #include <string>
9 9
10 #include "mojo/public/cpp/application/lib/service_connector.h" 10 #include "mojo/public/cpp/application/lib/service_connector.h"
11 11
12 namespace mojo { 12 namespace mojo {
13 13
14 // An instance of this class is passed to 14 // An instance of this class is passed to
15 // ApplicationDelegate's ConfigureIncomingConnection() method each time a 15 // ApplicationDelegate's ConfigureIncomingConnection() method each time a
16 // connection is made to this app, and to ApplicationDelegate's 16 // connection is made to this app, and to ApplicationDelegate's
17 // ConfigureOutgoingConnection() method when the app connects to 17 // ConfigureOutgoingConnection() method when the app connects to
18 // another. 18 // another.
19 // 19 //
20 // To use define a class that implements your specific service api, e.g. FooImpl 20 // To use define a class that implements your specific service api, e.g. FooImpl
21 // to implement a service named Foo. 21 // to implement a service named Foo.
22 // That class must subclass an InterfaceImpl specialization. 22 // That class must subclass an InterfaceImpl specialization.
23 // 23 //
24 // If there is context that is to be shared amongst all instances, define a 24 // Then implement an InterfaceFactory<Foo> that binds instances of FooImpl to
25 // constructor with that class as its only argument, otherwise define an empty 25 // InterfaceRequest<Foo>s and register that on the connection.
26 // constructor.
27 // 26 //
28 // class FooImpl : public InterfaceImpl<Foo> { 27 // connection->AddService(&factory);
29 // public:
30 // explicit FooImpl(ApplicationConnnection* connection) {}
31 // };
32 // 28 //
33 // or 29 // Or if you have multiple factories implemented by the same type, explicitly
30 // specify the interface to register the factory for:
34 // 31 //
35 // class BarImpl : public InterfaceImpl<Bar> { 32 // connection->AddService<Foo>(&my_foo_and_bar_factory_);
36 // public: 33 // connection->AddService<Bar>(&my_foo_and_bar_factory_);
37 // // contexts will remain valid for the lifetime of BarImpl.
38 // BarImpl(ApplicationConnnection* connection, BarContext* service_context)
39 // : connection_(connection), servicecontext_(context) {}
40 // 34 //
41 // Create an ApplicationDelegate instance and pass it to the constructor 35 // The InterfaceFactory must outlive the ApplicationConnection.
42 // of an ApplicationImpl. The delegate will be called when new connections are
43 // made to other applications.
44 //
45 // connection->AddService<FooImpl>();
46 //
47 // BarContext context;
48 // connection->AddService<BarImpl>(&context);
49 class ApplicationConnection { 36 class ApplicationConnection {
50 public: 37 public:
51 virtual ~ApplicationConnection(); 38 virtual ~ApplicationConnection();
52 39
53 // Impl’s constructor will receive two arguments: 40 template <typename Interface>
54 // Impl::Impl(Application::Context* app_context, 41 void AddService(InterfaceFactory<Interface>* factory) {
55 // ServiceContext* svc_context)
56 template <typename Impl, typename ServiceContext>
57 void AddService(ServiceContext* context) {
58 AddServiceConnector( 42 AddServiceConnector(
59 new internal::ServiceConnector<Impl, ServiceContext>(Impl::Name_, 43 new internal::InterfaceFactoryConnector<Interface>(factory));
60 context));
61 }
62
63 // Impl’s constructor will receive one argument:
64 // Impl::Impl(Application::Context* app_context)
65 template <typename Impl>
66 void AddService() {
67 AddServiceConnector(
68 new internal::ServiceConnector<Impl, void>(Impl::Name_, NULL));
69 } 44 }
70 45
71 // Connect to the service implementing |Interface|. 46 // Connect to the service implementing |Interface|.
72 template <typename Interface> 47 template <typename Interface>
73 void ConnectToService(InterfacePtr<Interface>* ptr) { 48 void ConnectToService(InterfacePtr<Interface>* ptr) {
74 MessagePipe pipe; 49 MessagePipe pipe;
75 ptr->Bind(pipe.handle0.Pass()); 50 ptr->Bind(pipe.handle0.Pass());
76 GetServiceProvider()->ConnectToService(Interface::Name_, 51 GetServiceProvider()->ConnectToService(Interface::Name_,
77 pipe.handle1.Pass()); 52 pipe.handle1.Pass());
78 } 53 }
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89 // the service implementation of the interface identified by |Interface|. 64 // the service implementation of the interface identified by |Interface|.
90 template <typename Interface> 65 template <typename Interface>
91 void ConnectToService(const std::string& application_url, 66 void ConnectToService(const std::string& application_url,
92 InterfacePtr<Interface>* ptr) { 67 InterfacePtr<Interface>* ptr) {
93 ConnectToApplication(application_url)->ConnectToService(ptr); 68 ConnectToApplication(application_url)->ConnectToService(ptr);
94 } 69 }
95 70
96 // Raw ServiceProvider interface to remote application. 71 // Raw ServiceProvider interface to remote application.
97 virtual ServiceProvider* GetServiceProvider() = 0; 72 virtual ServiceProvider* GetServiceProvider() = 0;
98 73
99 private: 74 private:
100 virtual void AddServiceConnector( 75 virtual void AddServiceConnector(
101 internal::ServiceConnectorBase* service_connector) = 0; 76 internal::ServiceConnectorBase* service_connector) = 0;
102 }; 77 };
103 78
104 } // namespace mojo 79 } // namespace mojo
105 80
106 #endif // MOJO_PUBLIC_APPLICATION_APPLICATION_CONNECTION_H_ 81 #endif // MOJO_PUBLIC_APPLICATION_APPLICATION_CONNECTION_H_
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